Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With average temperatures fluctuating between a high of 27.9°F (-2.3°C) and a low of 16.5°F (-8.6°C), January stands out as the coldest month.Humidity
January and February, with an average relative humidity of 83%, are the most humid months in South Barrington.Rainfall
In South Barrington, in January, during 6 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 145.9 rainfall days, and 24.72" (628mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In South Barrington, during January, snow falls for 12.7 days and regularly aggregates up to 3.86" (98mm) of snow. In South Barrington, Illinois, during the entire year, snow falls for 47.6 days and aggregates up to 15.83" (402mm) of snow.Daylight
In South Barrington, the average length of the day in January is 9h and 32min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:31 pm. On the last day of January, in South Barrington, sunrise is at 7:06 am and sunset at 5:05 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.6h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 1 transforms into these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What month is the coldest in South Barrington?
How cold is January in South Barrington?
What is the most humid month in South Barrington?
What is the average humidity in January in South Barrington?
How much does it rain in South Barrington in January?
How much does it snow in South Barrington in January?
How many hours of daylight does South Barrington have in January?
What time are sunrise and sunset in January in South Barrington?
What is the month with the least sunshine in South Barrington?
How many hours of sunshine does South Barrington have in January?
What are the months with the lowest UV index in South Barrington?
How high is the UV index in January in South Barrington?
Average temperature in January
South Barrington, IL
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in January: 16.5°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in January
South Barrington, IL
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
South Barrington, IL
- Average wind speed in January: 9.9mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in January
South Barrington, IL
- Average humidity in January: 83%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
South Barrington, IL
- Average rainfall in January: 1.38"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days in January
South Barrington, IL
- Average rainfall days in January: 6 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in January
South Barrington, IL
- Average snowfall in January: 3.86"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
South Barrington, IL
- Average snowfall days in January: 12.7 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
South Barrington, IL
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in January
South Barrington, IL
- Average sunshine days in January: 14.1 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in January
South Barrington, IL
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
South Barrington, IL
- Average cloud cover in January: 62
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 32).
Average visibility in January
South Barrington, IL
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
South Barrington, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
